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| Orders > Correspondence Manual > Appendix B |
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Spell out the first reference to any acronym used, and place the acronym in parentheses after it (e.g., Federal Highway Administration (FHWA))
On internal FHWA memorandums when the acronym is recognized by everyone, it does not have to be spelled out. This does not apply to the memorandum to the Secretary.
A list of common FHWA acronyms and other Federal Government acronyms is included.
A list of preferred State highway agency acronyms is also included. These preferred acronyms are to be used in FHWA correspondence.
| AA | Associate Administrator |
|---|---|
| AAA | American Automobile Association or Appraisers Association of America |
| AADT | Annual Average Daily Traffic |
| AAMVA | American Association of Motor Vehicle Administrators |
| AAR | Association of American Railroads |
| AARP | American Association of Retired Persons |
| AASHTO | American Association of State Highway and Transportation Officials |
| AAST | Atlanta Administrative Services Team |
| ABA | American Bus Association |
| ACEC | American Consulting Engineers Council |
| ACHP | Advisory Council on Historical Preservation |
| ACI | American Concrete Institute |
| ACIR | Advisory Commission on Intergovernmental Affairs |
| ACPA | American Concrete Pavement Association or American Concrete Pipe Association |
| ADA | Americans with Disabilities Act |
| ADA | Assistant Division Administrator |
| ADH | Appalachian Development Highways |
| ADHS | Appalachian Development Highway System |
| AGC | Association of General Contractors |
| AHATF | American Highway Association Trust Fund |
| AHUA | American Highway Users Alliance |
| AI | Asphalt Institute |
| AISI | American Iron and Steel Institute |
| ALAR | Appalachian Local Access Roads |
| ALF | Accelerated Loading Facility [part of Pavement Testing Facility (PTF)] |
| AMPO | Association of Metropolitan Planning Organizations |
| ANPRM | Advance Notice of Proposed Rulemaking |
| AOTR | Agreement Officer’s Technical Representative |
| APBP | Association of Pedestrian & Bicycle Professionals |
| APTA | American Public Transportation Association |
| APWA | American Public Works Association |
| AQCR | Air Quality Control Region |
| AQMA | Air Quality Maintenance Area |
| ARC | Appalachian Regional Commission |
| AREA | American Railway Engineering Association |
| ARPA | Archeological Resource Protection Act |
| ARTBA | American Road and Transportation Builders Association |
| ASCE | American Society of Civil Engineers |
| ASLRA | American Short Line Railroad Association |
| ASTM | American Society for Testing and Materials, International |
| ATA | American Trucking Associations |
| ATA | Association of Transportation Archaeologists |
| ATSSA | American Traffic Safety Services Administration |
| AWP | Annual Work Plan |
| BAC | Blood Alcohol Concentration (or Content) |
| BAT | Best Available Technology |
| BCA | Bureau of Contract Appeals |
| BFO | Best and Final Offer |
| BIA | Bureau of Indian Affairs |
| BLM | Bureau of Land Management |
| BMP | Best Management Practices |
| BNIP | Bridge Needs and Investment Process |
| BRRA | Bus Regulatory Reform Act |
| BTS | Bureau of Transportation Statistics |
| CA/T | Central Artery/Harbor Tunnel |
| CAA | Clean Air Act |
| CADRE | Critical Automated Data Reporting Elements |
| CAP | Capacity Assurance Plan |
| CAPE | Commercial Accident Prevention and Evaluation |
| CAS | Center for Auto Safety |
| CBD | Central Business District |
| CBO | Congressional Budget Office |
| CBRA | Coastal Barrier Resource Act |
| CCH | Commerce Clearing House |
| CCRL | Cement and Concrete Reference Laboratory |
| CDL | Commercial Driver’s License |
| CDLIS | Commercial Driver’s License Information System |
| CE | Categorical Exclusion |
| CEA | Council of Economic Advisors |
| CEQ | Council on Environmental Quality |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act (“Superfund”) |
| CERCLIS | CERCLA Information System |
| CERF | Civil Engineering Research Foundation |
| CFO | Chief Financial Officer |
| CFR | Code of Federal Regulations |
| CH | Critical Habitat |
| CHS | Citizens for Highway Safety |
| CMAQ | Congestion Mitigation and Air Quality |
| CMB | Concrete Median Barrier |
| CMV | Commercial Motor Vehicle |
| CMVSA | Commercial Motor Vehicle Safety Act of 1986 |
| CO | Carbon Monoxide |
| CO2 | Carbon Dioxide |
| COOP | Continuity of Operations Plan |
| CoP | Community of Practice |
| COTR | Contracting Officer’s Technical Representative |
| CPI | Continuous Process Improvement |
| CPLM | Civilian Personnel Law Manual |
| CR | Compliance Review |
| CRASH | Canadians for Responsible and Safe Highways or Citizens for Responsible and Safe Highways |
| CRP | Combined Road Plan |
| CRREL | Cold Region Research and Engineering Laboratory |
| CRS | Congressional Research Service |
| C-SHRP | Canadian Strategic Highway Research Program |
| CSS | Context Sensitive Solutions |
| CTIP | Coordinated Federal Lands Highway Technology Implementation Program |
| CTPP | Census Transportation Planning Package |
| CTS | Correspondence Tracking System |
| CTTAG | Cargo Tank Technical Advisory Group |
| CUTC | Consortium of University Transportation Centers |
| CVO | Commercial Vehicle Operations |
| CWA | Clean Water Act |
| CY | Calendar Year |
| CZ | Clear Zone |
| CZ | Coastal Zone |
| CZM | Coastal Zone Management |
| DA | Division Administrator |
| DBE | Disadvantaged Business Enterprise |
| DEACON | Drug Enforcement Assistance and Coordination |
| DFS | Director of Field Services |
| DHS | U.S. Department of Homeland Security |
| DIAP | Drug Interdiction Assistance Program |
| DLCSC | Driver Licensing and Control Subcommittee |
| DMV | Department of Motor Vehicles |
| DOA | U.S. Department of the Army |
| DOC | U.S. Department of Commerce |
| DOD | U.S. Department of Defense |
| DOE | U.S. Department of Energy |
| DOI | U.S. Department of the Interior |
| DOJ | U.S. Department of Justice |
| DOL | U.S. Department of Labor |
| DOT | U.S. Department of Transportation |
| DP | Demonstration Projects |
| DSI | Detailed Site Investigation |
| DVMT | Daily Vehicle Miles Traveled |
| EA | Environmental Assessment or Enterprise Architecture |
| EA/FONSI | Environmental Assessment/Finding of No Significant Impact |
| EAJA | Equal Access to Justice Act |
| EAP | Employee Assistance Program |
| ECS | Emergency Communications System |
| EDA | Economic Development Administration |
| EHS | Extremely Hazardous Substance |
| EHTR | Emergency Highway Traffic Regulation |
| EIS | Environmental Impact Statement |
| EJ | Environmental Justice |
| EO | Executive Order |
| EP | Experimental Project(s) |
| EPA | Environmental Protection Agency |
| ER | Emergency Relief |
| ESA | Endangered Species Act |
| FA | Federal-aid |
| FAA | Federal Aviation Administration |
| FACA | Federal Advisory Committee Act |
| FAI | Federal-aid Interstate |
| FAP | Federal-aid primary |
| FAPG | Federal-aid Policy Guide |
| FAR | Federal Acquisition Regulations |
| FARS | Fatal Accident Reporting System |
| FAS | Federal-aid secondary |
| FAU | Federal-aid urban |
| FAUS | Federal-aid urban system |
| FCC | Federal Communications Commission |
| FEMA | Federal Emergency Management Agency |
| FH | Forest Highway |
| FHA | Federal Housing Administration |
| FHBM | Flood Hazard Boundary Map |
| FHWA | Federal Highway Administration |
| FIA | Federal Insurance Administration |
| FICCDC | Federal Interagency Coordinating Committee on Digital Cartography |
| FIF | Flood Insurance Fund |
| FIFRA | Federal Insecticide, Fungicide, and Rodenticide Act |
| FIP | Federal Implementation Plan |
| FIRM | Flood Insurance Rate Map |
| FMCSA | Federal Motor Carrier Safety Administration |
| FMCSR | Federal Motor Carrier Safety Regulations |
| FMIS | Federal Management Information System |
| FMSR | Federal Merit System Reporter |
| FMV | Fair Market Value |
| FMVECP | Federal Motor Vehicle Emission Control Program |
| FMVSS | Federal Motor Vehicle Safety Standards |
| FOIA | Freedom of Information Act |
| FOIL | Federal Outdoor Impact Laboratory |
| FOT | Field Operational Test |
| FPPA | Farmland Protection Policy Act |
| FR | Federal Register |
| FRA | Federal Railroad Administration |
| FSA | Flexible Spending Account |
| F-SHRP | Future Strategic Highway Research Program |
| FSP | Field Sampling Plan |
| FSS | Federal Specifications and Standards |
| FSupp | Federal Supplement |
| FTA | Federal Transit Administration |
| FTCA | Federal Tort Claims Act |
| FTE | Full-time Equivalent |
| FTP | Federal Test Procedure |
| FTR | Federal Travel Regulations |
| FWCA | Fish and Wildlife Coordination Act |
| FWPCA | Federal Water Pollution Control Act |
| FWS | Fish and Wildlife Service |
| FY | Fiscal Year |
| GAO | General Accountability Office |
| GCC | Global Climate Change |
| GIS | Geographic Information System |
| GLP | Good Laboratory Practice |
| GOE | General Operating Expense |
| GPS | Global Positioning System |
| GRIS | Geographical Roadway Information System |
| GRR | Great River Road |
| GSA | General Services Administration |
| GVWR | Gross Vehicle Weight Rating |
| GWPS | Groundwater Protection Standard |
| H/WSTAG | Hazardous Waste and Substance Technical Advisory Group |
| HABS | Historic American Building Survey |
| HAD | Office of the Associate Administrator for Administration |
| HAZMAT | Hazardous Materials |
| HBCU | Historically Black Colleges and Universities |
| HBRRP | Highway Bridge Replacement & Rehabilitation Program |
| HCC | Office of the Chief Counsel |
| HCM | Office of the Associate Administrator for Corporate Management |
| HCR | Office of the Associate Administrator for Civil Rights |
| HCS | Highway Capacity Software or Hazard Communication Standards |
| HEP | Office of the Associate Administrator for Planning, Environment and Realty |
| HERS | Highway Economic Requirements System |
| HETP | Highway Engineer Trainee Program |
| HF | High Frequency |
| HFCC | Human Factor Coordinating Committee |
| HfL | Highways for Life |
| HFL | Office of the Associate Administrator for Federal Lands Highway |
| HFO | Highway Field Operations |
| HHS | U.S. Department of Health and Human Services |
| HIF | Office of the Associate Administrator for Infrastructure |
| HIN | Office of the Director of Innovative Program Delivery |
| HMAC | Hazardous Materials Advisory Council |
| HMIS | Hazardous Materials Information System |
| HMPM | Hazardous Materials Program Manager |
| HMR | Hazardous Materials Regulations |
| HOA | Office of the Federal Highway Administrator |
| HOP | Office of the Associate Administrator for Operations |
| HOV | High Occupancy Vehicle |
| HPA | Office of the Associate Administrator for Public Affairs |
| HPD | Office of the Associate Administrator for Professional and Corporate Development |
| HPL | Office of the Associate Administrator for Policy and Governmental Affairs |
| HPMS | Highway Performance Monitoring System |
| HPNPA | High Priority National Program Area |
| HPTR | Highway Planning Technical Reports |
| HRT | Office of the Associate Administrator for Research, Development, and Technology |
| HSA | Office of the Associate Administrator for Safety |
| HSIP | Highway Safety Improvement Program |
| HSIRS | Highway Statistics Information Retrieval System |
| HSIS | Highway Safety Information System |
| HSM | Highway Safety Manual |
| H-T&I | House – Transportation and Infrastructure Committee |
| HTF | Highway Trust Fund |
| HUD | U.S. Department of Housing and Urban Development |
| HUF | Highway Users Federation |
| HUFSAM | Highway Users Federation for Safety and Mobility |
| HVUT | Heavy Vehicle User Tax |
| HW | Hazardous Waste |
| HWM | Hazardous Waste Management |
| HWTC | Hazardous Waste Treatment Council |
| IACET | International Association of Continuing Education & Training |
| IACP | International Association of Chiefs of Police |
| IADB | Inter-American Development Bank |
| IANA | Intermodal Association of North America |
| IBT | International Brotherhood of Teamsters |
| IBTTA | International Bridge , Tunnel, and Turnpike Association |
| ICC | Intercounty Connector |
| IESNA | Illuminating Engineering Society of North America |
| IHSDM | Interactive Highway Safety Design Model |
| IIHS | Insurance Institute for Highway Safety |
| I/M | Inspection and Maintenance |
| IMIS | Integrated Motorist Information System |
| IPCC | Intergovernmental Panel on Climate Change |
| IPWF | International Public Works Federation |
| IRF | International Road Federation |
| IRIS | Integrated Risk Information System (U.S. EPA) |
| IRM | Information Resource Management |
| IRS | Internal Revenue Service |
| IRWA | International Right-of-Way Association |
| IS | Interstate System |
| ISA | Initial Site Assessment |
| ISTEA | Intermodal Surface Transportation Efficiency Act of 1991 |
| ITE | Institute of Transportation Engineers |
| ITS | Intelligent Transportation System |
| IVHSA | Intelligent Vehicle-Highway Systems of America |
| IVSA | Intelligent Vehicle Society of America |
| KFACTOR | Percentage of Daily VMT in Peak Hour |
| KSA | Knowledge, Skills and Abilities |
| LAN | Local Area Network |
| LAST | Lakewood Administrative Services Team |
| LCV | Longer Combination Vehicles |
| LOS | Level of Service or Length of Service |
| LPA | Local Public Agency |
| LSR | Local Streets and Roads |
| LTAP | Local Technical Assistance Program |
| LTPP | Long Term Pavement Performance |
| LTS | Legislative Tracking System |
| LUST | Leaking Underground Storage Tank |
| MADD | Mothers Against Drunk Driving |
| MAGLEV | Magnetic Levitation |
| MARAD | Maritime Administration |
| MBE | Minority Business Enterprise |
| MCA | Motor Carrier Act |
| MCSA | Motor Carrier Safety Act |
| MCSAP | Motor Carrier Safety Assistance Program |
| MFRR | Minimum Financial Responsibility Regulations |
| MIDC | Mortgage Interest Differential Computation |
| MOA | Memorandum of Agreement |
| MOU | Memorandum of Understanding |
| MPG | Miles Per Gallon |
| MPH | Miles Per Hour |
| MPO | Metropolitan Planning Organization |
| MSA | Metropolitan Statistical Area |
| MSPB | Merit System Protection Board |
| MSW | Municipal Solid Waste |
| MTMC | Military Traffic Management Command |
| MUTCD | Manual on Uniform Traffic Control Devices |
| MVA | Motor Vehicle Administration |
| MVMA | Motor Vehicle Manufacturers’ Association |
| MVMT | Million Vehicle Miles of Travel |
| MWAA | Metropolitan Washington Airports Authority |
| NAAQS | National Ambient Air Quality Standards |
| NAC | Noise Abatement Criteria |
| NACE | National Association of County Engineers |
| NACo | National Association of Counties |
| NADO | National Association of Development Organizations |
| NAPA | National Asphalt Pavement Association |
| NARA | National Archives and Records Administration |
| NARC | National Association of Regional Councils |
| NBI | National Bridge Inventory |
| NBIS | National Bridge Inspection Standards |
| NCAC | National Crash Analysis Center |
| NCHRP | National Cooperative Highway Research Program |
| NCP | National Contingency Plan |
| NCS | National Communications System |
| NCSHPO | National Conference of State Historic Preservation Officers |
| NDER | National Defense Executive Reserve |
| NDTA | National Defense Transportation Association |
| NEPA | National Environmental Policy Act |
| NESHAP | National Emission Standard for Hazard Air Pollutants |
| NETS | Network of Employers for Traffic Safety |
| NFIP | National Flood Insurance Program |
| NHI | National Highway Institute |
| NHPA | National Historic Preservation Act |
| NHS | National Highway System |
| NHTSA | National Highway Traffic Safety Administration |
| NIOSH | National Institute of Occupational Safety and Health |
| NITL | National Industrial Transportation League |
| NMCAC | National Motor Carrier Advisory Committee |
| NMFS | National Marine Fisheries Service |
| NN | National Network |
| NOAA | National Oceanic and Atmospheric Administration |
| NPL | National Priorities List |
| NPRM | Notice of Proposed Rulemaking |
| NPS | Nonpoint Source or National Park Service |
| NPTS | National Personal Transportation Study |
| NRC | National Response Center or National Research Council |
| NRECA | National Rural Electric Cooperative Association |
| NRHP | National Register of Historic Places |
| NSA | National Stone Association |
| NSBYP | National Scenic Byways Program |
| NSCI | National System Condition Index |
| NSEP | National Security Emergency Preparedness |
| NSPE | National Society of Professional Engineers |
| NTIS | National Technical Information Service |
| NTP | National Toxicology Program or National Transportation Policy |
| NTW | National Transportation Week |
| OAAA | Outdoor Advertising Association of America |
| OAC | Office of Outdoor Advertising Control |
| OAS | Organization of American States |
| OECD | Organization for Economic Cooperation and Development |
| OFCCP | Office of Federal Contract Compliance Programs |
| OIC | Officer in Charge |
| OIG | Office of the Inspector General |
| OJT | On-the-Job Training |
| OLI | Operation Lifesaver, Inc. |
| OMB | Office of Management and Budget |
| OPA | Other Principal Arterial |
| OPM | Office of Personnel Management |
| OSHA | Occupational Safety and Health Administration |
| OST | Office of the Secretary of Transportation (S-1) |
| Office of the Deputy Secretary of Transportation (S-2) | |
| Office of the Under Secretary for Policy (S-3) | |
| Executive Secretariat (S-10) | |
| Departmental Office of Civil Rights (S-30) | |
| Office of Small and Disadvantaged Business Utilization (S-40) | |
| Office of the Chief Information Officer (S-80) | |
| Office of Public Affairs (A) | |
| Office of the Assistant Secretary for Budget and Programs/Chief | |
| Information Officer (B) | |
| Office of the General Counsel (C) | |
| Office of the Assistant Secretary for Governmental Affairs (I) | |
| Office of the Inspector General (J) | |
| Office of the Assistant Secretary for Administration (M) | |
| Office of the Assistant Secretary of Policy (P) | |
| Office of the Assistant Secretary for Aviation and | |
| International Affairs (X) | |
| PAC | Presidential Advisory Committee or Political Action Committee |
| PAHC | Pan American Highway Congress |
| PBCAT | Pedestrian & Bicycle Crash Analysis Tools |
| PBIC | Pedestrian & Bicycle Information Center |
| PCA | Portland Cement Association |
| PCB | Portland Concrete Barrier |
| PCBs | Polychlorinated Biphenyls |
| PCP | Private Carriers of Passengers |
| PDP | Professional Development Program |
| PE | Preliminary Engineering |
| PEC | Permanent Executive Committee |
| PFCRA | Program Fraud Civil Remedies Act |
| PI | Periodic Inspection |
| PIARC | Permanent International Association of Road Congresses |
| PIH | Pan American Institute of Highways |
| PIL | Policy Interpretation Library |
| PL | Public Law |
| PLH | Public Lands Highway |
| PMG | Pavement Management Group |
| PMRS | Personnel Management Recognition System |
| PMS | Pavement Management System or Personnel Management System |
| POV | Privately Owned Vehicle |
| PRP | Potentially Responsible Party |
| PS&E | Plans, Specifications, and Estimates |
| PSI | Preliminary Site Investigation |
| PTDIA | Professional Truck Drivers Institute of America |
| PTF | Pavement Testing Facility |
| PTSA | Property Transaction Site Assessment |
| QA | Quality Assurance |
| QAPP | Quality Assurance Project Plan |
| QC | Quality Control |
| QRS | Quick Response System |
| R&D | Research and Development |
| R&T | Research and Technology |
| RAC | Response Action Contractor or Research Advisory Committee (AASHTO) |
| RAP | Remedial Action Plan or Relocation Assistance Program |
| RC | Resource Center |
| RCA | Record of Coordination and Approval |
| RCRA | Resource, Conservation and Recovery Act |
| REA | Rural Electrification Administration |
| RFP | Request for Proposal |
| RHP | Replacement Housing Payment |
| RI/FS | Remedial Investigation/Feasibility Study |
| RIN | Regulatory Information Number |
| RITA | Research and Innovative Technology Administration |
| RMCL | Recommended Maximum Contaminant Level |
| ROADS | Recruitment Online Application System |
| ROD | Record of Decision |
| ROW | Right-of-Way |
| RPI | Railway Progress Institute |
| RRL | Regulation Reform Legislation |
| RTAG | Radioactive Technical Advisory Group |
| RTOR | Right-Turn-On-Red |
| SAC | Structures Advisory Council |
| SAE | Society of Automotive Engineers |
| SAFETEA-LU | Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users |
| SAP | Sampling and Analysis Plan |
| SARA | Superfund Amendments and Reauthorization Act |
| SAS | Statistical Analysis System |
| SBA | Small Business Administration |
| SBIR | Small Business Innovation Research |
| SCOE | Standing Committee on Environment (AASHTO) |
| SCOH | Standing Committee on Highways (AASHTO) |
| SCOP | Standing Committee on Planning (AASHTO) |
| SCOR | Standing Committee on Research (AASHTO) |
| SCS | Soil Conservation Service |
| SD | State Director |
| SEP | State Enforcement Plan |
| SES | Senior Executive Service |
| SHA | State Highway Agency |
| SHPO | State Historic Preservation Officer (or Office) |
| SHRP | Strategic Highway Research Program |
| SHVs | Specialized Hauling Vehicles |
| SIC | Standard Industrial Classification |
| SIP | State Implementation Plan |
| SITE | Site Impact Traffic Evaluation |
| SITE | Superfund Innovative Technology Evaluation |
| SOV | Single Occupant Vehicle |
| SOW | Statement of Work |
| SPF | Simplified Project Forecasting |
| SPR | State Planning and Research |
| SR | State Route |
| SREA | Society of Real Estate Appraisers |
| SS | Safety Specialist |
| STAA | Surface Transportation Assistance Act |
| STARC | State Area Commanders |
| STIP | Statewide Transportation Improvement Program |
| STURAA | Surface Transportation and Uniform Relocation Assistance Act |
| TA | Technical Advisory |
| TAC | Technical Advisory Committee |
| TAG | Technical Advisory Group |
| TAM | Transportation Asset Management |
| TAR | Transportation Acquisition Regulation |
| TAT | Technical Assistance Team |
| TCD | Traffic Control Device |
| TCM | Transportation Control Measure |
| TCP | Traffic Control Plan |
| TCSP | Transportation & Community System Preservation |
| TEA-21 | Transportation Equity Act for the 21st Century |
| TIFIA | Transportation Infrastructure Finance and Innovation Act |
| TIP | Transportation Improvement Program |
| TMA | Transportation Management Association |
| TMC | Travel Management Center |
| TMDL | Total Maximum Daily Load |
| TMIP | Travel Model Improvement Program |
| TMV | Toxicity, Mobility or Volume |
| TPF | Transportation Pooled Fund |
| TPQ | Threshold Planning Quality |
| TQM | Total Quality Management |
| TRB | Transportation Research Board |
| TRIP | The Road Information Program |
| TRRL | Transportation Road Research Laboratory ( United Kingdom ) |
| TS&W | Truck Size and Weight |
| TSA | Transportation Security Administration |
| TSCA | Toxic Substances Control Act |
| TSI | Transportation Safety Institute |
| TSM | Transportation System Management |
| TSP | Telecommunications Service Priority (System) |
| TSP | Thrift Savings Plan |
| TSP | Transportation Safety Planning |
| TST | Technical Services Team |
| TTAP | Tribal Technical Assistance Program |
| TTI | Texas Transportation Institute |
| TTMA | Truck Trailer Manufacturers Association |
| TTSA | Tandem Truck Safety Act |
| TVA | Tennessee Valley Authority |
| TWS | Truck Weight Study |
| UGPTI | Upper Great Plains Transportation Institute |
| ULCC | Utility Location and Coordination Council |
| UMTRI | University of Michigan Transportation Research Institute |
| UPWP | Unified Planning Work Program |
| URAA | Uniform Relocation Assistance Act |
| USACOE | U.S. Army Corps of Engineers |
| USC | United States Code |
| USCA | United States Code Annotated |
| USCM | U.S. Conference of Mayors |
| USDA | U.S. Department of Agriculture |
| USFS | U.S. Forest Service |
| USGS | U.S. Geological Survey |
| USPS | U.S. Postal Service |
| UST | Underground Storage Tank |
| UTC | University Transportation Center |
| UTPP | Urban Transportation Planning Package |
| UTPS | Urban Transportation Planning System |
| UVC | Uniform Vehicle Code |
| VA | U.S. Department of Veterans Affairs |
| VE | Value Engineering |
| VHT | Vehicle Hours of Travel |
| VMT | Vehicle Miles Traveled or Vehicle Miles of Travel |
| VPH | Vehicles Per Hour |
| VRM | Visual Resource Management |
| VSW | Vehicle Size and Weight |
| WBE | Women’s Business Enterprise |
| WIPP | Waste Isolation Pilot Program |
| WMATA | Washington Metropolitan Area Transit Authority |
| Alabama | ALDOT |
|---|---|
| Alaska | DOT & PF |
| Arizona | ADOT |
| Arkansas | AHTD |
| California | Caltrans |
| Colorado | CDOT |
| Connecticut | ConnDOT |
| Delaware | DelDOT |
| D.C. | DDOT |
| Florida | FDOT |
| Georgia | GDOT |
| Hawaii | DOT |
| Idaho | ITD |
| Illinois | IDOT |
| Indiana | INDOT |
| Iowa | IowaDOT |
| Kansas | KDOT |
| Kentucky | KYTC |
| Louisiana | DOTD |
| Maine | MaineDOT |
| Maryland | SHA |
| Massachusetts | MassHighway |
| Michigan | MDOT |
| Minnesota | Mn/DOT |
| Mississippi | MDOT |
| Missouri | MoDOT |
| Montana | MDOT |
| Nebraska | NDOR |
| Nevada | NDOT |
| New Hampshire | NHDOT |
| New Jersey | NJDOT |
| New Mexico | NMDOT |
| New York | NYSDOT |
| North Carolina | NCDOT |
| North Dakota | NDDOT |
| Ohio | ODOT |
| Oklahoma | ODOT |
| Oregon | ODOT |
| Pennsylvania | PennDOT |
| Puerto Rico | DTOP |
| Rhode Island | RIDOT |
| South Carolina | SCDOT |
| South Dakota | SDDOT |
| Tennessee | TDOT |
| Texas | TxDOT |
| Utah | UDOT |
| Vermont | VTrans |
| Virginia | VDOT |
| Washington | WSDOT |
| West Virginia | WVDOT |
| Wisconsin | WisDOT |
| Wyoming | WYDOT |
| Previous: Appendix A - General Editorial Rules | Next: Appendix C - External and Internal Forms of Address |
